- (in plane Cartesian coordinates) the x-coordinate of a point: its distance from the y-axis measured parallel to the x-axis.
Origin of abscissa
1690–1700; feminine of Latin abscissus (past participle of abscindere to abscind)
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Examples from the Web for abscissa
The abscissa of such a curve is the reading of the instrument to be corrected.
To provide for such cases the curve is drawn as if it never touched the abscissa.Logic
A curve is thus obtained, the ordinate representing growth elongation and the abscissa the time.
As the temperature is made to rise one degree per minute, the abscissa also represents rise of temperature (Fig. 66).
A Thermo-crescent Curve is thus obtained, the ordinate of which represents increment of growth, and the abscissa, the time.
- the horizontal or x -coordinate of a point in a two-dimensional system of Cartesian coordinates. It is the distance from the y -axis measured parallel to the x -axisCompare ordinate
C17: New Latin, originally linea abscissa a cut-off line
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for abscissa
Online Etymology Dictionary, © 2010 Douglas Harper
- The distance of a point from the y-axis on a graph in the Cartesian coordinate system. It is measured parallel to the x-axis. For example, a point having coordinates (2,3) has 2 as its abscissa. Compare ordinate.
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